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Groups > linux.kernel > #1487639
| From | Alexandre Belloni <alexandre.belloni@free-electrons.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v3 3/5] clk: at91: sckc: optimize boot time |
| Date | 2016-09-20 23:10 +0200 |
| Message-ID | <sjAsG-8jJ-7@gated-at.bofh.it> (permalink) |
| References | <sjAj0-81b-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Assume that if the oscillator is enabled (OSC32EN bit is present), the delay has already elapsed as the bootloader probably waited for the oscillator to settle. This could waste up to 1.2s. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> --- drivers/clk/at91/sckc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index 60d8225715a2..b1265f2cdae7 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -69,7 +69,7 @@ static int clk_slow_osc_prepare(struct clk_hw *hw) void __iomem *sckcr = osc->sckcr; u32 tmp = readl(sckcr); - if (tmp & AT91_SCKC_OSC32BYP) + if (tmp & (AT91_SCKC_OSC32BYP | AT91_SCKC_OSC32EN)) return 0; writel(tmp | AT91_SCKC_OSC32EN, sckcr); -- 2.9.3
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[PATCH v3 0/5] AT91: sckc improvements Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-09-20 23:00 +0200
[PATCH v3 2/5] clk: at91: Add sama5d4 sckc support Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-09-20 23:00 +0200
Re: [PATCH v3 2/5] clk: at91: Add sama5d4 sckc support Stephen Boyd <sboyd@codeaurora.org> - 2016-09-21 02:10 +0200
[PATCH v3 3/5] clk: at91: sckc: optimize boot time Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-09-20 23:10 +0200
Re: [PATCH v3 3/5] clk: at91: sckc: optimize boot time Stephen Boyd <sboyd@codeaurora.org> - 2016-09-21 02:10 +0200
[PATCH v3 4/5] ARM: dts: at91: sama5d4: use proper sckc compatible Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-09-20 23:10 +0200
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